Title :
A three-phase ZVT boost rectifier with improved analog controller
Author :
Zhang, Richard ; Hiti, Silva ; Lee, Fred C. ; Boroyevic, Dushan
Author_Institution :
Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
Abstract :
An analog current controller is very attractive for a three-phase ZVT boost PWM rectifier due to its simplicity, no sampling delay, low cost, etc. Although a six-step operation can be achieved automatically under ideal situations, an improved analog controller has been proposed to deal with problems under unbalanced situations. A comprehensive study and control loop design are presented. A design example for a 6 kW three phase ZVT boost PWM PFC converter operating at 50 kHz is described
Keywords :
PWM power convertors; control system synthesis; controllers; electric current control; power factor correction; rectifying circuits; switching circuits; 50 kHz; 6 kW; PWM PFC converter; analog current controller; control loop design; dominant phase gate drive disabling; power factor correction; six-step operation; three-phase ZVT boost rectifier; unbalanced situations; zero voltage transition; Automatic control; Bridge circuits; Diodes; Frequency; Pulse width modulation; Rectifiers; Steady-state; Switches; Switching loss; Zero voltage switching;
Conference_Titel :
Power Electronics Specialists Conference, 1996. PESC '96 Record., 27th Annual IEEE
Conference_Location :
Baveno
Print_ISBN :
0-7803-3500-7
DOI :
10.1109/PESC.1996.548622
